Grigiškės is a city in Vilnius County, Lithuania. Grigiškės lies at 90 m above sea level. It has 9,950 inhabitants (2021). The nearest city is Vilnius, 12.7 km to the east. Among the landmarks around are Vilnius Cathedral (12.8 km), National Museum of Lithuania (12.9 km) and Trakai Island Castle (10.4 km). Among the natural features are Tauras Hill (11.8 km) and Belūnai Oak (2.8 km).